Mine abrupt slope automatic net laying and anchoring equipment

Abstract

The invention provides automatic net laying and anchoring equipment for a mine abrupt slope, and relates to the technical field of anchoring equipment, the automatic net laying and anchoring equipment comprises a rack, the rack is provided with an anchor rod mounting mechanism, a drilling mechanism and a net laying mechanism, an expansion anchor rod comprises a rod body, the rod body is sleeved with an expansion sleeve, the expansion sleeve is sleeved with a pressing plate and a compression spring, and a nut is installed on the rod body in a threaded mode; two grabbing holes are formed in the pressing plate, the anchor rod installation mechanism comprises a first sliding frame, an anchor rod installation frame is installed on the first sliding frame in a sliding mode, and a plurality of clamping jaws and nut locking rods are arranged on the anchor rod installation frame. The active net is matched with the expansion anchor rod to reinforce the rock mass on the slope surface, the stability of the mine abrupt slope rock mass is improved, the pressing plate is pulled up before the expansion anchor rod is installed, the pressing plate is prevented from abutting against the rock mass when the nut is rotated, and therefore the influence of impact force generated when the nut rotates on shallow cracks is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of anchoring equipment, and in particular to an automatic net laying and anchoring equipment for steep slopes in mines. Background Art

[0002] In mining areas, steep slopes will be formed as ores are mined. There are shallow and segmented cracks in the rock mass on the steep slopes. Under the influence of external forces, rainfall, and weathering, the rock mass is prone to further cracking, and there is a hidden danger of collapse of the steep slopes. The existing treatment method is to clean the easily collapsible rock mass on the steep wall by cutting the slope. This method not only has a large workload and high construction difficulty, but also destroys the original structure and stress distribution of the mountain body, which may lead to a decrease in the stability of the steep slope and an increase in the risk of landslides and collapses. Especially in areas with frequent rainfall and complex geological conditions, the slope after cutting is more likely to slide due to rainwater infiltration. After cutting, an active net will be manually laid and anchored on the slope surface. The process of manually laying the active net and anchoring on the slope surface is highly dangerous and inefficient. During the installation of the anchor bolt, by rotating the nut, the pressing plate moves towards the slope surface. Under the action of the friction force and pre-tightening force between the nut and the anchor bolt, a certain impact force will be generated. The structure with bent ends of the pressing plate abuts against the rock mass and transmits the impact force generated when rotating the nut to the rock mass. The impact force exacerbates the cracking of the shallow cracks on the rock mass and reduces the stability of the rock mass. At the same time, when rotating the nut, the friction force between the nut and the pressing plate will drive the pressing plate to rotate, and the rotating pressing plate generates a torque on the rock mass, which will also cause the cracks to continue to crack.

[0003] Therefore, an automatic net laying and anchoring equipment for steep slopes in mines that solves the above problems is needed. Summary of the Invention

[0004] The present invention provides an automatic net laying and anchoring equipment for steep slopes in mines, which realizes automatic net laying and automatic anchoring on the slope surface of the original steep slope in mines, improves construction safety and efficiency, avoids the damage to the original rock mass on the steep slope in mines caused by cutting the slope, the active net cooperates with the expansion anchor bolts to reinforce the rock mass on the slope surface, reduces the occurrence of continuous cracking of the rock mass, improves the stability of the rock mass on the steep slope in mines, and moreover, the pressing plate is lifted before installing the expansion anchor bolt to avoid the pressing plate abutting against the rock mass when rotating the nut, thereby reducing the influence of the impact force generated when rotating the nut on the shallow cracks.

[0005] The technical solution of the present invention is realized as follows:

[0006] The automatic net laying and anchoring equipment for steep slopes in mines includes a frame. An anchor bolt installation mechanism, a drilling mechanism, and a net laying mechanism are sequentially arranged on the frame along the X-axis direction. A driving mechanism for pulling the frame to move on the slope surface is also arranged on the frame;

[0007] The bolt installation mechanism is used to grasp and install the expansion bolt. The expansion bolt includes a rod body, on which an expansion sleeve is sleeved. A conical head for expanding the expansion sleeve is provided on the rod body. A pressing plate and a compression spring are sleeved on the expansion sleeve. A nut is threadedly installed on the rod body, and the nut is arranged above the expansion sleeve. The compression spring is arranged between the nut and the pressing plate. Two grasping holes are symmetrically arranged on the pressing plate. Both ends of the pressing plate are bent away from the compression spring to form bent plates;

[0008] The bolt installation mechanism includes a first sliding frame slidably installed on the frame along the X-axis direction. An anchor bolt installation frame is slidably installed on the first sliding frame along the Z-axis direction. A plurality of pairs of clamping jaws for extending into the corresponding grasping holes and grasping the corresponding pressing plates are slidably installed on the anchor bolt installation frame. The clamping jaws are arranged along the Y-axis. Each pair of clamping jaws is connected to a clamping jaw driving component. A plurality of nut locking rods for pressing down the nut and rotating the corresponding nut after the expansion bolt is installed are rotatably installed on the anchor bolt installation frame. The nut locking rods are vertically arranged along the Z-axis between the corresponding two clamping jaws.

[0009] As a preferred technical solution, a limiting groove adapted to the nut is provided at the lower end of each nut locking rod. An avoidance groove for avoiding the rod body is provided on each nut locking rod, and each avoidance groove communicates with the corresponding limiting groove.

[0010] As a preferred technical solution, a plurality of pairs of support rods arranged along the X-axis are fixedly installed on the frame. Each pair of support rods corresponds to a nut locking rod. Each support rod includes a guiding portion inclined downward, and each guiding portion is connected to a horizontally arranged clamping portion. The free end of the clamping portion is bent upward to form a limiting portion. The limiting portion is used to limit the expansion bolt located on the clamping portion. A plurality of the expansion bolts are placed on the corresponding two support rods. The rod body is located between the two support rods, and the pressing plate is placed above the two support rods.

[0011] As a preferred technical solution, each clamping jaw driving component includes a rotating disc rotatably installed on the anchor bolt installation frame. Each nut locking rod passes through the corresponding rotating disc. Two guiding through grooves are symmetrically arranged on the rotating disc. The guiding through grooves are inclined. The upper end of each clamping jaw is slidably installed on the anchor bolt installation frame along the Y-axis direction. Each clamping jaw passes through the corresponding guiding through groove, and a grasping portion is provided at the lower end of each clamping jaw.

[0012] As a preferred technical solution, a plurality of expansion joints are circumferentially distributed at the lower end of the expansion sleeve to form a plurality of expansion petals.

[0013] As a preferred technical solution, the drilling mechanism includes a second sliding frame slidably mounted on the frame along the X-axis direction, a drilling frame slidably mounted on the second sliding frame along the Z-axis direction, a plurality of drill rods for drilling mounting holes on the upper and lower sides of shallow, segmented rock masses are rotatably mounted on the drilling frame, the drill rods correspond one-to-one to the nut locking rods, and the drill rods are arranged along the Y-axis and vertically arranged along the Z-axis.

[0014] As a preferred technical solution, the web laying mechanism includes a web laying frame fixedly mounted on the frame, and at least one roll of active web is placed on the web laying frame.

[0015] As a preferred technical solution, the driving mechanism includes two symmetrically arranged winding drums, which are rotatably mounted on one end of the frame close to the mesh laying frame, and two guide sleeves corresponding to the two winding drums are fixedly mounted on one end of the frame close to the first sliding frame, and a cable is wound around each winding drum, one end of the cable is fixedly mounted on the corresponding winding drum, and the other end of the cable passes through the corresponding guide sleeve.

[0016] By adopting the above technical solution, the beneficial effects of the present invention are as follows:

[0017] Since the automatic mesh laying and anchoring equipment for steep slopes in mines includes an anchor rod installation mechanism, during the use of this equipment, one end of the active mesh placed on the frame is fixed to the top of the slope, and the frame is moved from the top of the slope to the bottom of the slope by the driving mechanism. During this process, the rolled active mesh is unfolded and laid on the slope, thus realizing the automatic laying of the active mesh. After laying the mesh, when the frame moves to the upper or lower side of the shallow, segmented rock mass, the drilling mechanism will drill installation holes on the upper or lower side of the shallow, segmented cracked rock mass, and at the same time, the clamping claws extend and The nut locking rod drives the nut to rotate, and the rod body moves toward the direction close to the corresponding nut locking rod. The expansion sleeve is opened by the conical head and pressed against the inner wall of the mounting hole, thereby realizing the automatic installation of the expansion anchor.

[0018] The present invention realizes automatic net laying on the slope of the original steep mine. After net laying, automatic anchoring is carried out on the upper and lower sides of the shallow-layer and segmented cracked rocks. Compared with the existing mine steep slope treatment methods, the construction safety and construction efficiency are improved, the damage to the original rock mass on the mine steep slope caused by slope cutting is avoided, the active net cooperates with the expansion anchor bolts to reinforce the rock mass on the slope surface, reduces the occurrence of continuous cracking of the rock mass, improves the stability of the rock mass on the mine steep slope, and reduces the occurrence of disasters such as rock collapse, landslide and falling rocks.

[0019] Before installing the expansion anchor bolt, the pressing plate is lifted, which avoids the pressing plate abutting against the rock mass when turning the nut, thereby reducing the impact on the shallow crack generated when the nut rotates, and also avoids the torque being transmitted to the rock mass through the pressing plate when the nut rotates, thus avoiding the occurrence of continuous cracking of the rock mass crack caused by installing the expansion screw.

[0020] Since the automatic net laying and anchoring equipment for the mine steep slope includes a jaw driving component, during the process of grasping the expansion screw, through the movement of the first sliding frame and the anchor bolt mounting frame, the jaws extend into the corresponding grasping holes, and through the rotation of the rotating disk, the inner wall of the guiding through groove pushes the jaws to move away from the nut locking rod, and the clamping part hooks on the pressing plate, thereby realizing the grasping of the pressing plate, that is, realizing the grasping of the expansion screw.

[0021] Since a limiting groove is provided on the nut locking rod, during the process of grasping the expansion screw, as the anchor bolt mounting frame moves, the top of the nut abuts against the limiting groove and continues to push the nut to move towards the pressing plate, and the rod body moves along with the nut. During this process, the pressing plate is supported by the support rod, thereby realizing the lifting of the pressing plate. Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 is a schematic structural diagram of the present invention;

[0024] Figure 2 is Figure 1 the top view of;

[0025] Figure 3 is Figure 2 the sectional view taken along the A-A direction in;

[0026] Figure 4 is Figure 2Schematic cross-sectional view in the B-B direction;

[0027] Figure 5 Schematic structural view of the inner ring and the outer ring;

[0028] Figure 6 Schematic structural view of the rotating disk;

[0029] Figure 7 Reference view of the state of clamping and installing the expansion screw;

[0030] Figure 8 Schematic structural view of the first mounting bracket and the second mounting bracket;

[0031] Figure 9 Reference view of the state of the present invention working on the slope;

[0032] Figure 10 Schematic structural view of the slope after laying the net.

[0033] Wherein: 1, frame; 2, slope; 3, expansion anchor bolt; 4, rod body; 5, expansion sleeve; 6, conical head; 7, pressing plate; 8, compression spring; 9, nut; 10, grasping hole; 11, bent plate; 12, first sliding frame; 13, anchor bolt mounting frame; 14, clamping jaw; 15, nut locking rod; 16, limiting groove; 17, avoiding groove; 18, support rod; 19, guiding part; 20, grasping part; 21, limiting part; 22, rotating disk; 23, guiding through groove; 24, grasping part; 25, expansion joint; 26, expansion flap; 27, second sliding frame; 28, drilling frame; 29, mounting hole; 30, drill pipe; 31, net laying frame; 32, active net; 33, winding drum; 34, guiding sleeve; 35, cable; 36, first mounting bracket; 37, first hinge shaft; 38, active walking wheel; 39, second mounting bracket; 40, second hinge shaft; 41, driven walking wheel; 42, outer ring; 43, gear driving motor; 44, gear; 45, external meshing teeth; 46, inner ring; 47, rolling element; 48, guiding rubber roller; 49, locking rod driving motor; 50, drill pipe driving motor; 51, winding drum driving motor; 52, first slide rail; 53, first sliding frame driving motor; 54, first sliding frame driving lead screw; 55, first sliding frame driving nut; 56, second sliding frame driving motor; 57, second sliding frame driving lead screw; 58, second sliding frame driving nut; 59, second slide rail; 60, third slide rail; 61, clamping jaw slide rail. Detailed implementation manners

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0035] As Figures 1 - 10 Collectively shown, the automatic mesh laying and anchoring device for steep slopes in mines includes a frame 1. Along the X-axis direction on the frame 1, an anchor rod installation mechanism, a drilling mechanism, and a mesh laying mechanism are sequentially arranged. A driving mechanism for pulling the frame 1 to move on the slope 2 is also arranged on the frame 1.

[0036] The anchor rod installation mechanism is used to grab and install the expansion anchor rod 3. The expansion anchor rod 3 includes a rod body 4. An expansion sleeve 5 is sleeved on the rod body 4. A conical head 6 for expanding the expansion sleeve 5 is arranged on the rod body 4. A pressure plate 7 and a compression spring 8 are sleeved on the expansion sleeve 5. A nut 9 is threadedly installed on the rod body 4. The nut 9 is arranged above the expansion sleeve 5. The compression spring 8 is arranged between the nut 9 and the pressure plate 7. Two grabbing holes 10 are symmetrically arranged on the pressure plate 7. Both ends of the pressure plate 7 are bent away from the side of the compression spring 8 to form bent plates 11.

[0037] As Figures 1 - 3 Collectively shown, the anchor rod installation mechanism includes a first sliding frame 12 slidably installed on the frame 1 along the X-axis direction. An anchor rod installation frame 13 is slidably installed on the first sliding frame 12 along the Z-axis direction. A plurality of pairs of jaws 14 for extending into the corresponding grabbing holes 10 and grabbing the corresponding pressure plates 7 are slidably installed on the anchor rod installation frame 13. The jaws 14 are arranged along the Y-axis. Each pair of jaws 14 is connected to a jaw driving component. A plurality of nut locking rods 15 for pressing down the nut 9 and rotating the corresponding nut 9 after the expansion anchor rod 3 is installed are rotatably installed on the anchor rod installation frame 13. The nut locking rods 15 are vertically arranged along the Z-axis between the corresponding two jaws 14.

[0038] Wherein, a limiting groove 16 adapted to the nut 9 is arranged at the lower end of each nut locking rod 15. An avoidance groove 17 for avoiding the rod body 4 is arranged on each nut locking rod 15. Each avoidance groove 17 communicates with the corresponding limiting groove 16.

[0039] As Figure 1As shown, several pairs of support rods 18 arranged along the X-axis are fixedly installed on the frame 1. Each pair of support rods 18 corresponds to a nut locking rod 15 one by one. Each support rod 18 includes a downwardly inclined guiding portion 19, and each guiding portion 19 is connected to a horizontally arranged clamping portion 20. The free end of the clamping portion 20 is bent upward to form a limiting portion 21, and the limiting portion 21 is used to limit the expansion anchor rod 3 located on the clamping portion 20. A number of expansion anchor rods 3 are placed on the corresponding two support rods 18. The rod body 4 is located between the two support rods 18, and the pressing plate 7 is leaned against the upper sides of the two support rods 18.

[0040] Furthermore, each jaw driving assembly includes a rotating disk 22 rotatably installed on the anchor rod mounting frame 13. Each nut locking rod 15 passes through the corresponding rotating disk 22. Two guiding through slots 23 are symmetrically arranged on the rotating disk 22, and the guiding through slots 23 are inclined. The upper end of each jaw 14 is slidably installed on the anchor rod mounting frame 13 along the Y-axis direction. Each jaw 14 passes through the corresponding guiding through slot 23, and a grasping portion 24 is provided at the lower end of each jaw 14.

[0041] Secondly, a number of expansion joints 25 are circumferentially distributed at the lower end of the expansion sleeve 5 to form a number of expansion flaps 26. A conical head 6 for squeezing the expansion flaps 26 to push them outward is provided at the lower end of the rod body 4.

[0042] As Figure 4 shown, the drilling mechanism includes a second sliding frame 27 slidably installed on the frame 1 along the X-axis direction. A drilling frame 28 is slidably installed on the second sliding frame 27 along the Z-axis direction. A number of drill rods 30 for drilling installation holes 29 on the upper and lower sides of the shallow and segmented rock mass are rotatably installed on the drilling frame 28. The drill rods 30 correspond to the nut locking rods 15 one by one. The drill rods 30 are arranged along the Y-axis and are vertically arranged along the Z-axis.

[0043] The mesh laying mechanism includes a mesh laying frame 31 fixedly installed on the frame 1. At least one roll of active mesh 32 is placed on the mesh laying frame 31.

[0044] The driving mechanism includes two symmetrically arranged winding drums 33. The two winding drums 33 are rotatably installed at one end of the frame 1 close to the mesh laying frame 31. Two guiding sleeves 34 corresponding to the two winding drums 33 one by one are fixedly installed at one end of the frame 1 close to the first sliding frame 12. A cable 35 is wound on each winding drum 33. One end of the cable 35 is fixedly installed on the corresponding winding drum 33, and the other end of the cable 35 passes through the corresponding guiding sleeve 34.

[0045] The driving mechanism also includes a pair of first mounting frames 36, and the two first mounting frames 36 are hinged to the two sides of the frame 1 through a first hinge shaft 37. A driving walking wheel 38 and a second mounting frame 39 are hinged on the first mounting frame 36, and the driving walking wheel 38 is connected to a walking wheel driving device. The first hinge shaft 37 is arranged between the driving walking wheel 38 and the second mounting frame 39. The second mounting frame 39 is installed on the second mounting frame 39 through a second hinge shaft 40. Two driven walking wheels 41 are hinged on the second mounting frame 39. The second hinge shaft 40 is arranged between the two driven walking wheels 41. The walking wheel driving device includes a walking wheel driving motor fixedly mounted on the first mounting frame 36, and the walking wheel driving motor is not marked in the figure.

[0046] An outer ring 42 is fixedly installed on the top of each rotating disk 22, and a plurality of gears 44 driven by a gear drive motor 43 are rotatably installed on the anchor mounting frame 13. The gear drive motor 43 is fixedly installed on the anchor mounting frame 13. An outer meshing tooth 45 meshing with the corresponding gear 44 is provided on the outer circumferential surface of each outer ring 42. An inner ring 46 is rotatably installed on the inner side of each outer ring 42. A plurality of rolling bodies 47 are provided between each inner ring 46 and the corresponding outer ring 42. Each inner ring 46 is fixedly installed on the anchor mounting frame 13.

[0047] A pair of guide rubber rollers 48 are rotatably mounted on the frame 1 , and the active net 32 ​​passes between the two guide rubber rollers 48 . The two guide rubber rollers 48 are both arranged between the second sliding frame 27 and the net laying frame 31 .

[0048] A plurality of locking rod driving motors 49 are fixedly mounted on the anchor rod mounting frame 13 , and each locking rod driving motor 49 is drivingly connected to a corresponding nut locking rod 15 .

[0049] A plurality of drill rod drive motors 50 are fixedly mounted on the drilling frame 28 , and each drill rod drive motor 50 is drivingly connected to a corresponding drill rod 30 .

[0050] Two bobbin drive motors 51 are fixedly mounted on the frame 1 , and the bobbin drive motors 51 are drivingly connected to the corresponding bobbins 33 .

[0051] Two pairs of first slide rails 52 are fixedly installed on the frame 1 along the X-axis, the first sliding frame 12 and the second sliding frame 27 are both slidably installed on the four first slide rails 52, a first sliding frame driving screw rod 54 driven by a first sliding frame driving motor 53 is rotatably installed on the frame 1, the first sliding frame driving motor 53 is fixedly installed on the frame 1, a first sliding frame driving nut 55 is threadedly installed on the first sliding frame driving screw rod 54, and the first sliding frame driving nut 55 is fixedly installed on the first sliding frame 12, a second sliding frame driving screw rod 57 driven by a second sliding frame driving motor 56 is rotatably installed on the frame 1, the second sliding frame driving motor 56 is fixedly installed on the frame 1, a second sliding frame driving nut 58 is threadedly installed on the second sliding frame driving screw rod 57, and the second sliding frame driving nut 58 is fixedly installed on the first sliding frame 12.

[0052] Two pairs of second slide rails 59 arranged along the Z axis are fixedly installed on the first sliding frame 12, and the anchor rod mounting frame 13 is slidably installed on the second slide rails 59. A mounting frame driving screw rod arranged along the Z axis is rotatably installed on the first sliding frame 12, and the mounting frame driving screw rod is transmission-connected with a mounting frame driving motor, which is fixedly installed on the first sliding frame 12. A mounting frame driving nut is threadedly installed on the mounting frame driving screw rod, and the mounting frame driving nut is fixedly installed on the anchor rod mounting frame 13.

[0053] Two pairs of third slide rails 60 arranged along the Z axis are fixedly installed on the second sliding frame 27, and the drilling frame 28 is slidably installed on the third slide rails 60. A drilling frame driving screw rod arranged along the Z axis is rotatably installed on the second sliding frame 27. The drilling frame driving screw rod is transmission-connected with a drilling frame driving motor. The drilling frame driving motor is fixedly installed on the second sliding frame 27. A drilling frame driving nut is threadedly installed on the drilling frame driving screw rod, and the drilling frame driving nut is fixedly installed on the drilling frame 28.

[0054] The mounting frame driving screw rod, mounting frame driving motor, mounting frame driving nut, drilling frame driving screw rod, drilling frame driving motor, and drilling frame driving nut are not marked in the figure.

[0055] A plurality of pairs of clamping jaw slide rails 61 arranged along the Y-axis direction are fixedly mounted on the anchor rod mounting frame 13 , and the clamping jaws 14 are slidably mounted on the corresponding clamping jaw slide rails 61 .

[0056] The method of use of the present invention is as follows:

[0057] In the first step, the ends of the cable 35 and the active net 32 ​​are fixed to the top of the slope 2, and the frame 1 is placed on the slope 2. With the rotation of the active walking wheel 38 and the winding drum 33, the frame 1 moves from the top of the slope 2 to the bottom of the slope 2, and the rolled active net 32 ​​is unfolded and laid on the slope 2. After laying the net, when the drill rod 30 moves to the upper or lower side of the cracked rock mass, the frame 1 stops moving, the second sliding frame 27 moves to the position to be drilled, and the drill rod 30 drills the installation hole 29.

[0058] In the second step, at the same time, the first sliding frame 12 moves to the top of the clamping part 20, the anchor rod mounting frame 13 moves toward the direction close to the support rod 18, the clamping claw 14 extends into the corresponding grabbing hole 10, and the nut locking rod 15 pushes the nut 9 toward the direction close to the pressure plate 7, thereby realizing the lifting of the pressure plate 7. Under the drive of the clamping claw driving mechanism, the clamping claw 14 hooks the pressure plate 7, thereby realizing the clamping of the expansion anchor rod 3.

[0059] In the third step, after the drilling is completed, the first sliding frame 12 moves, the expansion anchor rod 3 moves to the top of the mounting hole 29, and the anchor rod mounting frame 13 moves toward the direction close to the rock mass, and the expansion anchor rod 3 is placed in the corresponding mounting hole 29. At this time, the lifted pressure plate 7 does not rest against the rock mass.

[0060] In the fourth step, after the expansion anchor 3 is placed in the mounting hole 29, the nut locking rod 15 drives the nut 9 to rotate, and the rod body 4 moves toward the nut locking rod 15, and the conical head 6 opens the expansion sleeve 5 and presses it against the inner wall of the mounting hole 29, thus completing the installation of the expansion anchor 3. The clamping jaw 14 releases the pressure plate 7, and under the action of the compression spring 8, the pressure plate 7 presses the active net 32 ​​against the rock mass, thereby achieving the fixation of the active net 32 ​​on the rock mass, and the first sliding frame 12 and the anchor mounting frame 13 are reset, waiting for the next clamping and installation of the expansion anchor 3.

[0061] In the fifth step, after the expansion anchor rod 3 is installed, the frame 1 continues to move until it stops at the upper or lower side of the next cracked rock mass and anchors it, and repeats this process until the upper and lower sides of the cracked rock mass on the slope 2 are anchored. The frame 1 moves to the bottom of the slope 2 and fixes the active net 32 ​​at the bottom of the slope 2, thus completing the automatic laying and anchoring of at least one active net 32 ​​on the slope 2.

[0062] In the sixth step, the winding drum 33 retracts the rope, the frame 1 returns to the top of the slope 2, and the frame 1 is moved to the adjacent slope 2. The operations of the first to fifth steps are repeated to achieve automatic laying and anchoring of the active net 32 ​​on the adjacent slope 2. This reciprocating process can achieve automatic laying and anchoring of the entire steep slope of the mine.

[0063] In summary, the present invention realizes automatic net laying and automatic anchoring on the slope of the original steep mine, improves the construction safety and efficiency, the active net cooperates with the expansion bolts to reinforce the rock mass on the slope, reduces the occurrence of continuous cracking of the rock mass, improves the stability of the rock mass on the steep mine slope, and, before installing the expansion bolts, the pressing plate is lifted to avoid the pressing plate abutting against the rock mass when turning the nut, thereby reducing the impact force generated when turning the nut on the shallow cracks.

[0064] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Automatic mesh laying and anchoring equipment for steep slopes in mines, including a frame, characterized in that: The frame is provided with an anchor rod installation mechanism, a drilling mechanism and a net laying mechanism in sequence along the X-axis direction, and the frame is also provided with a driving mechanism for pulling the frame to move on the slope; The anchor rod installation mechanism is used to grasp and install the expansion anchor rod, and the expansion anchor rod comprises a rod body, an expansion sleeve is sleeved on the rod body, a conical head for expanding the expansion sleeve is provided on the rod body, a pressure plate and a compression spring are sleeved on the expansion sleeve, a nut is threadedly installed on the rod body, the nut is arranged above the expansion sleeve, the compression spring is arranged between the nut and the pressure plate, two grasping holes are symmetrically arranged on the pressure plate, and both ends of the pressure plate are bent to a side away from the compression spring to form a bent plate; The anchor rod installation mechanism includes a first sliding frame slidably installed on the frame along the X-axis direction, an anchor rod installation frame slidably installed on the first sliding frame along the Z-axis direction, a plurality of pairs of jaws slidably installed on the anchor rod installation frame for extending into the corresponding grabbing holes and grabbing the corresponding pressure plates, the jaws are arranged along the Y-axis, each pair of the jaws is connected to a jaw driving assembly, a plurality of nut locking rods for pressing down the nuts and rotating the corresponding nuts after the expansion anchor rods are installed are rotatably installed on the anchor rod installation frame, and the nut locking rods are vertically arranged between the corresponding two jaws along the Z-axis.

2. The automatic mesh laying and anchoring equipment for steep slopes in mines according to claim 1 is characterized in that: The lower end of each nut locking rod is provided with a limiting groove adapted to the nut, and each nut locking rod is provided with an avoidance groove for avoiding the rod body, and each avoidance groove is connected to the corresponding limiting groove.

3. The automatic mesh laying and anchoring equipment for steep slopes in mines according to claim 1 is characterized in that: A plurality of pairs of support rods arranged along the X-axis are fixedly mounted on the frame, each pair of the support rods corresponds to the nut locking rod one by one, each of the support rods includes a downwardly inclined guide portion, each of the guide portions is connected to a horizontally arranged clamping portion, and the free end of the clamping portion is bent upward to form a limiting portion, and the limiting portion is used to limit the expansion anchor rod located at the clamping portion, and a plurality of the expansion anchor rods are placed on the corresponding two support rods, the rod body is located between the two support rods, and the pressure plate rests on top of the two support rods.

4. The automatic mesh laying and anchoring equipment for steep slopes in mines according to claim 1 is characterized in that: Each of the clamping jaw driving assemblies comprises a rotating disk rotatably mounted on the anchor rod mounting frame, each of the nut locking rods passes through the corresponding rotating disk, two guide slots are symmetrically arranged on the rotating disk, and the guide slots are inclined. The upper end of each of the clamping jaws is slidably mounted on the anchor rod mounting frame along the Y-axis direction, each of the clamping jaws passes through the corresponding guide slot, and a gripping portion is provided at the lower end of each of the clamping jaws.

5. The automatic mesh laying and anchoring equipment for steep slopes in mines according to claim 1 is characterized in that: The lower end of the expansion sleeve is circumferentially provided with a plurality of expansion joints to form a plurality of expansion petals.

6. The automatic mesh laying and anchoring equipment for steep slopes in mines according to claim 1 is characterized in that: The drilling mechanism includes a second sliding frame slidably mounted on the frame along the X-axis direction, a drilling frame slidably mounted on the second sliding frame along the Z-axis direction, a plurality of drill rods for drilling mounting holes on the upper and lower sides of shallow, segmented rock masses are rotatably mounted on the drilling frame, the drill rods correspond one-to-one to the nut locking rods, and the drill rods are arranged along the Y-axis and vertically arranged along the Z-axis.

7. The automatic mesh laying and anchoring equipment for steep slopes in mines according to claim 1, characterized in that: The web laying mechanism comprises a web laying frame fixedly mounted on the frame, and at least one roll of active web is placed on the web laying frame.

8. The automatic mesh laying and anchoring equipment for steep slopes in mines according to claim 7, characterized in that: The driving mechanism includes two symmetrically arranged winding drums, which are rotatably mounted on one end of the frame close to the mesh laying frame, and two guide sleeves corresponding to the two winding drums are fixedly mounted on one end of the frame close to the first sliding frame, and a cable is wound around each winding drum, one end of the cable is fixedly mounted on the corresponding winding drum, and the other end of the cable passes through the corresponding guide sleeve.

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